Home / 28,409,026.78-39,204,440.04-15,356,285.92

Finding the Fourth Proportional to 28,409,026.78, 39,204,440.04 and 15,356,285.92

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Solution

The fourth proportional to 28,409,026.78, 39,204,440.04 and 15,356,285.92 is: 21,191,665.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409,026.78 : 39,204,440.04 = 15,356,285.92 : x
  2. Step 2: Convert to fraction form
    28,409,026.78/39,204,440.04 = 15,356,285.92/x
  3. Step 3: Cross multiply
    28,409,026.78x = 39,204,440.04 × 15,356,285.92
  4. Step 4: Simplify right side
    28,409,026.78x = 602,034,590,587,736.25
  5. Step 5: Solve for x
    x = 602,034,590,587,736.25/28,409,026.78
  6. Step 6: Final answer
    x = 21,191,665.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.